// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MEDIA_FILTERS_WEBVTT_UTIL_H_
#define MEDIA_FILTERS_WEBVTT_UTIL_H_

#include <stdint.h>

#include <vector>

namespace media {

// Utility function to create side data item for decoder buffer.
template <typename T>
void MakeSideData(T id_begin,
    T id_end,
    T settings_begin,
    T settings_end,
    std::vector<uint8_t>* side_data)
{
    // The DecoderBuffer only supports a single side data item. In the case of
    // a WebVTT cue, we can have potentially two side data items. In order to
    // avoid disrupting DecoderBuffer any more than we need to, we copy both
    // side data items onto a single one, and terminate each with a NUL marker.
    side_data->clear();
    side_data->insert(side_data->end(), id_begin, id_end);
    side_data->push_back(0);
    side_data->insert(side_data->end(), settings_begin, settings_end);
    side_data->push_back(0);
}

} // namespace media

#endif // MEDIA_FILTERS_WEBVTT_UTIL_H_
